DSJ-FNK2A1 (K2 for short) is a 4G smart law enforcement recorder developed by Hongnan Technology. K2 has the characteristics of 4G full network frequency band, and supports WIFI/BT/BD functions. After being equipped with Hongnan Technology's visual integrated management platform, it can realize remote live broadcast, cluster intercom, real-time positioning, wireless image transmission and other functions. K2 uses Android operating system, high-performance 8-core processor, equipped with 2.4-inch touch screen, front and rear dual cameras, compact body design, easy to wear. It has the functional advantages of smooth operation, safe and stable, and fast operation.